The electric wheelchair control using electromyography sensor of arm muscle

摘要

Conventional wheelchair is not effective for people with disabilities, because it requires a great power in pedaling wheelchair. To solve the problem, there is electric wheelchair with a joystick control. However it is also not effective, when users have limitations such as defects of the fingers. Given these circumstances, this research proposes an electric wheelchair with controlled by electromyography (EMG) which is placed on the arm muscles. The arm muscle signal which has an electric potential difference will be read by EMG sensors. Then the data will converted from analog to digital by Arduino. This Electric wheelchair use 4-channel electrodes for sampling muscle signal. Where, the wheelchair will move forward when the biceps muscle is active, moving backward when the teres major muscle active. The wheelchair will turn to the right when the muscles wirst flexor active and turn left when the muscles wirst extensor active. Then the wheelchair will stop when the four muscles are used active simultaneously.